::cue - CSS: Cascading Style Sheets 编辑
The ::cue
CSS pseudo-element matches WebVTT cues within a selected element. This can be used to style captions and other cues in media with VTT tracks.
::cue {
color: yellow;
font-weight: bold;
}
The properties are applied to the entire set of cues as if they were a single unit. The only exception is that background
and its longhand properties apply to each cue individually, to avoid creating boxes and obscuring unexpectedly large areas of the media.
Syntax
::cue | ::cue( <selector> )
Permitted properties
Rules whose selectors include this element may only use the following CSS properties:
background
background-attachment
background-clip
background-color
background-image
background-origin
background-position
background-repeat
background-size
color
font
font-family
font-size
font-stretch
font-style
font-variant
font-weight
line-height
opacity
outline
outline-color
outline-style
outline-width
ruby-position
text-combine-upright
text-decoration
text-decoration-color
text-decoration-line
text-decoration-style
text-decoration-thickness
text-shadow
visibility
white-space
Examples
Styling WebVTT cues as white-on-black
The following CSS sets the cue style so that the text is white and the background is a translucent black box.
::cue {
color: #fff;
background-color: rgba(0, 0, 0, 0.6);
}
Specifications
Specification | Status | Comment |
---|---|---|
WebVTT: The Web Video Text Tracks Format The definition of '::cue' in that specification. | Candidate Recommendation | Initial definition. |
Browser compatibility
BCD tables only load in the browser
See also
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